Drive Roller For A Textile Machine Producing Cross-Wound Bobbins

Abstract

A drive roller on a textile machine producing cross-wound bobbins, for the frictional drive of a cross-wound bobbin, mounted to rotate in a spool frame on a spooling device, wherein the outer circumference ( 21 ) of the drive roller ( 11 ) is embodied by a thin-walled, profiled metal tube ( 19 ), formed by high-pressure internal forming.

1 . Drive roller for a textile machine producing cross-wound bobbins for the frictional drive of a cross-wound bobbin held so as to rotate in a creel of a winding device, characterized in that the outer periphery ( 21 ) of the drive roller ( 11 ) is formed by a thin-walled metal tube ( 19 ) profiled by high-pressure internal forming.  
   
   
       2 . Drive roller according to  claim 1 , characterized in that the thin-walled, profiled metal tube ( 19 ) consists of steel, preferably a stainless high-grade steel alloy.  
   
   
       3 . Drive roller according to  claim 1 , characterized in that the thin-walled profiled metal tube ( 19 ) is configured as a coated metal sleeve.  
   
   
       4 . Drive roller according to  claim 1 , characterized in that the drive roller ( 11 ) is acted upon by an electric motor single drive in the form of external rotor ( 22 ), on the rotor housing ( 28 ) of which the thin-walled, profiled metal tube ( 19 ) is fixed.  
   
   
       5 . Drive roller according to  claim 1 , characterized in that the thin-walled, profiled metal tube ( 19 ) has a wall thickness between 0.1 mm and 0.4 mm, preferably 0.2 mm.  
   
   
       6 . Drive roller according to  claim 1 , characterized in that the thin-walled, profiled metal tube ( 19 ) has a profiling that is stepped at least in the direction of rotation (R) of the drive roller ( 11 ), for example in the form of nubs ( 20 ) and/or webs ( 30 ).  
   
   
       7 . Drive roller according to  claim 6 , characterized in that the nubs ( 20 ) extend over the central region ( 31 ) of the drive roller ( 11 ), while webs ( 30 ) are arranged in the side regions ( 32 ,  33 ).  
   
   
       8 . Drive roller according to  claim 6 , characterized in that the drive roller ( 11 ) has webs ( 30 ) in its central region ( 31 ).  
   
   
       9 . Drive roller according to  claim 6 , characterized in that the nubs ( 20 ) extend uniformly over the entire outer periphery of the thin-walled, profiled steel tube ( 19 ).